What did calhoun want to nullify?

John C. Calhoun sought to nullify the Tariff of Abominations, enacted in 1828, which imposed high tariffs on imported goods. He believed these tariffs disproportionately harmed the Southern economy while benefiting Northern industrial interests. Calhoun argued for the principle of nullification, asserting that states had the right to invalidate Federal Laws they deemed unconstitutional. This stance ultimately contributed to tensions leading up to the Civil War.